{% extends 'SonataAdminBundle:CRUD:base_list_field.html.twig' %}

{% block field %}
<a href="https://www.youtube.com/watch?v={{object.youtubeId}}" target="_blank" rel="nofollow">
    <img src="http://img.youtube.com/vi/{{object.youtubeId}}/0.jpg" width="200" height="200"/>
</a>
{% endblock %}